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' Microsoft Developer & Platform Evangelism
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' THIS CODE AND INFORMATION ARE PROVIDED "AS IS" WITHOUT WARRANTY OF ANY KIND, 
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' OF MERCHANTABILITY AND/OR FITNESS FOR A PARTICULAR PURPOSE.
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Imports System.ComponentModel

Namespace ViewModel

    Public MustInherit Class BaseViewModel
        Implements INotifyPropertyChanged

        Public Event PropertyChanged As PropertyChangedEventHandler Implements INotifyPropertyChanged.PropertyChanged

        Public ReadOnly Property IsDesignTime() As Boolean
            Get
                Return DesignerProperties.IsInDesignTool
            End Get
        End Property

        Protected Overridable Sub NotifyPropertyChanged(ByVal propertyName As String)
            RaiseEvent PropertyChanged(Me, New PropertyChangedEventArgs(propertyName))
        End Sub
    End Class
End Namespace